Hi Milan,
I still don't see any error.
I tried to add products with "multiple quantity" via Category page and via Product Details page.. But i still don't see any problem.
On Category page:
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On Product details page:
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In what product are you getting the problem? If you try to add a product without waiting the page gets fully loaded, then you might end up with that kind of a problem. That's normal (the website must be light-weight and your server must be powerful to load the pages faster). Because "adding product to cart" is handled via AJAX loading (this file is responsible for adding product to cart:
new.lienkashop.sk/components/com_virtuemart/assets/js/vmprices.js?vmver=9194). it is a Core Virtuemart file and functionality and has nothing to do with our template.. If you are having serious problem with AJAX loading upon adding product to cart, then you can safely disable the AJAX loading via
Virtuemart Backend >> Configuration >> Checkout. it is up to you.. But this thing has nothing to do with our template, please keep this in mind.
FYI: There is a field in the Virtuemart Backend (for each product individually) that says: "Maximum Purchase Quantity", make sure that field is blank.
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regards.
Support